Ordering of Sentences - Verbal and Reasoning

Directions to SolveIn questions below, each passage consist of six sentences. The first and sixth sentence are given in the begining. The middle four sentences in each have been removed and jumbled up. These are labelled as P, Q, R and S. Find out the proper order for the four sentences.
Q1:

S1: Biological evolution has not fitted man to any specific environment.
P : It is by no means a biological evolution, but it is a cultural one.
Q : His imagination, his reason, his emotional subtlety and toughness, makes it possible for him not to accept the environment but to change.
R : And that series of inventions by which man from age by age has reshaped his environment is a different kind of evolution.
S : Among the multitude of animals which scamper, burrow swim around us he is in the only one who is not locked in to his environment.
S6: That brilliant sequence of cultural peaks can most appropriately be termed the ascent of man.
The Proper sequence should be:

A QPRS

B SRQP

C QRSP

D SQRP

ANS:C - QRSP

No answer description is available.